Improvement in siphon-pumps



' rection of the discharge.

UNITED STATES PATENT EEIoE,

Y HUGH COLL, OF MILLVALE BOROUGH, PENNSYLVANIA.

IMPROVEMENT IN SlPHON-PUMPS.

Specification forming part of Letters Patent No. 154,224, dated August 18, 1874; application led February 7, 1874.

CASE 2.

To all whom t may concern Beit known that I, HUGH COLL, of Millvale Borough, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Siphon-Pump; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing, forming'a part of this specification, in which- Figure l' is a perspective view of my improved steam Siphon-pump. Fig. 2 is a section of the same, when fitted with an improved form of steam-nozzle. Fig. 3 is a view of the forward end of the pump, the nozzle being removed. Fig. 4 is a rear-end view of the nozzle. Fig. 5 is a sectional view of a modication 'of the nozzle, which is especially adapted for pumps of large size.

Like letters of reference indicate like parts in each. 4

Atmospheric pressure, it properly directed, may be utilized v to act with the operative power of the pump. giving either increase of power, or permitting a decrease of the operative force. This increase in a degree compensates for the atmospheric pressure at the discharge-point, which, it is well known, requires the expenditure of a large amount of power to overcome. y

My present invention consists in the construction of improved devices by which I apply and direct this pressure.

The pump shown has a head, a, which is divided into areceiving and discharge chamber, c1 and o2, by means of a diaphragm, c, extending across it. It also has a steam-nozzle, b, a discharge nozzle, d, and is fitted with threads e, f, and g, for the purpose of making the necessary connections. This pump is thus far the same as that patented by me October 21, 1873. In the rear end of the nozzle-socket I place a ring, 7c, against which I screw the nozzle d. The adjacent faces of the ring and nozzle do not correspond, but are planed oli so as to form an inclined annular opening, m, extending into the discharge-opening n, its inclination bein gin a line convergent to the di- Extending from the opening m through the head a are two airports, o, by means of which air is admitted into the opening m.. The ports 0 may extend in at any angle, but at the point of entrance, m, into the discharge-nozzle they must converge to the line of the direction of the discharge. Through these openin gs the pressure of the atmosphere operates against the column of water in the manner described.

To fully utilize the increased power, I must increase the discharging capacity oi' the pump. This I do by means of the opening q, made at the forward end of the diaphragm c, to allow the water from-the receiving-chamber to pass directly intothe discharge-nozzle. The power of the pump is sufficient to discharge the full column of water from both chambers.

Fig. 2 shows an improved steam nozzle, which is applicable to this pump. It has two passages, r and s, which may be used at pleasure either for steam or air. I prefer, however, to admit the steam through the passage s, so that it shall envelop the air admitted through the passage r, to guard etlectually against the latter escaping into the dischargechamber back of the mouth of the jet-pipe. This may happen if the air is admitted through the outer opening.

Where the pump is of large size, to economize space the end of the discharge-nozzle may be inserted into the end of the connection z, as shown in Fig. 6.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The ring k, insertedbetween the contigu` ons ends of the head a, and nozzle d, having a planed or tapering face, so as to form, in conjunction with the adjacent face of the nozzle d, the inclined annular opening m, as described.

2. The inclined annular opening m,entering the nozzle d at one end, and communicating by ports o with the atmosphere, as described.

.3. The combined steam and air nozzle r s, in combination with the head a, as and for the purposes described.

In testimony whereof I, the said HUGH COLL, have hereunto set my hand.

HUGH COLL.

Witnesses:

T. B. KEER. FREDERICK STANDISH. 

